Poweka Inner Tube for Razor 300 E300 & E325 Mini Chopper Pocket Rocket 3.00-4 New high quality aftermarket replacement parts Tube has TR87 valve stem Fits for Razor 300 E300 & E325 Mini Chopper Pocket Rocket electric scooter Can used on other applications with the same tire size may be listed as 3.00-4, 10"x 3", or 260 x 85 Package includes 1pc inner tube